EP3382194B1 - Fuel injection pump - Google Patents

Fuel injection pump Download PDF

Info

Publication number
EP3382194B1
EP3382194B1 EP16868414.0A EP16868414A EP3382194B1 EP 3382194 B1 EP3382194 B1 EP 3382194B1 EP 16868414 A EP16868414 A EP 16868414A EP 3382194 B1 EP3382194 B1 EP 3382194B1
Authority
EP
European Patent Office
Prior art keywords
transmission shaft
lubricating oil
groove
oil passage
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16868414.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3382194A4 (en
EP3382194A1 (en
Inventor
Masaki NANKO
Yuji Shiba
Ryosuke Okamoto
Tetsu Hattori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Power Technology Co Ltd
Original Assignee
Yanmar Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Power Technology Co Ltd filed Critical Yanmar Power Technology Co Ltd
Publication of EP3382194A1 publication Critical patent/EP3382194A1/en
Publication of EP3382194A4 publication Critical patent/EP3382194A4/en
Application granted granted Critical
Publication of EP3382194B1 publication Critical patent/EP3382194B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0013—Medical image data
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
    • A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
    • A61B5/0044—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0263—Measuring blood flow using NMR
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
    • F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/02—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements
    • F02M41/06—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements the distributor rotating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
    • F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
    • F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/269—Analysis of motion using gradient-based methods
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/40—ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/321—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority
    • H04L9/3213—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority using tickets or tokens, e.g. Kerberos
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2576/00—Medical imaging apparatus involving image processing or analysis
    • A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
    • A61B2576/023—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part for the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • A61B5/02014—Determining aneurysm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/28—Mechanisms therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/38—Pumps characterised by adaptations to special uses or conditions
    • F02M59/42—Pumps characterised by adaptations to special uses or conditions for starting of engines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging
    • G01R33/56316—Characterization of motion or flow; Dynamic imaging involving phase contrast techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10076—4D tomography; Time-sequential 3D tomography
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10088—Magnetic resonance imaging [MRI]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30101—Blood vessel; Artery; Vein; Vascular
    • G06T2207/30104—Vascular flow; Blood flow; Perfusion

Definitions

  • the present invention relates to a technology of a fuel injection pump.
  • a fuel injection pump of an engine in which a control rack is disposed in a rack chamber surrounded by a portion of the upper surface of a pump housing forming an indentation and an under surface of a pump head (e.g., see Patent Literature 1, PTL 1).
  • Operating the control rack enables adjustment of a fuel supply amount from a fuel injection pump to a cylinder.
  • PTL 2 describes a fuel injection pump for internal combustion engines wherein the lubricating oil is fed continuously via a lubrication oil groove surrounding circumferentially a drive shaft through a bore of the drive shaft to generate a continuous supply of oil to the clutch.
  • the fuel injection pump changes a movement amount of the control rack according to the temperature state of the engine, to improve a start characteristic of the engine.
  • moisture contained in the blow-by gas entering from the engine condenses and adheres to the control rack, the moisture is frozen on the control rack when the temperature around the control rack falls below the freezing point.
  • the control rack cannot move due to ice droplets, and that fuel cannot be supplied to the engine.
  • a technical problem to be addressed by the present invention is to provide a fuel injection pump which prevents failure in starting an engine due to frozen moisture adhered to the control rack.
  • a fuel injection pump is a fuel injection pump provided in an engine, including: a control rack arranged in a rack chamber formed between a pump head and a pump housing, the control rack being configured to adjust a fuel injection amount; a transmission shaft rotatably supported by a transmission shaft hole formed in the pump housing; and a lubricating oil passage formed in the pump housing, the lubricating oil passage being configured to pressure-feed lubricating oil between the transmission shaft and the transmission shaft hole, wherein the transmission shaft has an oil passage formed as a groove in the outer circumferential surface of the transmission shaft, through which passage the lubricating oil pressure-fed to the lubricating oil passage partially passes, a first opening of the oil passage is communicated with the lubricating oil passage, and a second opening of the oil passage is formed on an outer circumferential surface of an upper portion of the transmission shaft, nearby the control rack.
  • the fuel injection pump of the aspect of the present invention is preferably such that the oil passage includes: a groove formed in the outer circumferential surface of the transmission shaft in an axial direction, the groove including the first opening; a communication path opened on a wall portion of the groove, and formed in a radial direction of the transmission shaft; and a supply hole communicated with the communication path, and formed from substantially an axial center portion of the transmission shaft to the second opening.
  • the fuel injection pump of the aspect of the present invention is preferably such that the groove has at least one side wall formed perpendicular to the wall portion.
  • the fuel injection pump of the aspect of the present invention is preferably such that a lower end portion of an open portion of the groove is formed in a substantially U-shape.
  • a fuel injection pump of the aspect of the present invention can prevent failure in starting an engine due to freezing of the control rack.
  • the following describes a structure of a fuel injection pump 1, with reference to FIG. 1 to FIG. 3 .
  • FIG. 1 and FIG. 2 the structure of the fuel injection pump 1 is partially illustrated in a cross-sectional view.
  • the fuel injection pump 1 is for supplying fuel to a not-shown fuel injection nozzle of a diesel engine 30.
  • the fuel injection pump 1 is a so-called distribution type fuel injection pump which distributes and supplies fuel to each cylinder of the diesel engine 30.
  • the front-rear direction refers to the axial direction of a later-described cam shaft 6, and the front side refers to the side on which a later-described governor device 22 is disposed, whereas the rear side refers to a side on which a later-described gear case 34.
  • the fuel injection pump 1 includes a pump housing 2 and a pump head 3.
  • the pump housing 2 is a structure constituting the lower half of the fuel injection pump 1. In a plane of the pump housing 2, a substantially parallelepiped indentation recessed downward is formed. In a lower portion of the pump housing 2, a cam chamber 4 is formed. The cam chamber 4 is structured so that the cam shaft 6 is arranged, and oil having lubricated the inside of the pump housing 2 can be stored.
  • the pump housing 2 has a governor flange 2A to which the governor device 22 is attached, which is integrally formed with the pump housing 2.
  • the cam shaft 6, a tappet 8, a transmission shaft 49, and the like are assembled.
  • the pump head 3 is a structure constituting the upper half of the fuel injection pump 1.
  • the pump head 3 is fixed on the pump housing 2.
  • a space surrounded by a portion of the upper surface of the pump housing 2 forming the indentation and an under surface of the pump head 3 constitutes a rack chamber 5.
  • the rack chamber 5 is arranged above the cam chamber 4.
  • a plunger 12, a plunger barrel 13, a spring 14, a distribution shaft 15, a sleeve 17, an amount adjusting mechanism 18, and the like are assembled.
  • the cam shaft 6 is a long member having a substantially cylindrical shape, which is bridged horizontally in the cam chamber 4.
  • the cam shaft 6 is rotatably supported by the pump housing 2 through a bearing or the like.
  • a cam 6A which drives the plunger 12 is fixed.
  • the tappet 8 is a substantially cylindrical member whose lower end portion is closed.
  • the tappet 8 is slideably fit in a tappet hole 2B formed in the pump housing 2.
  • the tappet hole 2B is a hole formed so as to penetrate the pump housing 2 between the cam chamber 4 and the rack chamber 5 in the vertical direction and is mostly closed by the tappet 8.
  • the transmission shaft 49 is a substantially cylindrical member supported by the pump housing 2.
  • the transmission shaft 49 is slideably fit in a transmission shaft hole 2C formed in the pump housing 2.
  • the transmission shaft hole 2C is a hole formed so as to penetrate the pump housing 2 between the cam chamber 4 and the rack chamber 5 in the vertical direction and is mostly closed by the transmission shaft 49.
  • the transmission shaft 49 is arranged above the cam shaft 6 so that its axial direction is perpendicular to the cam shaft 6. An upper end portion of the transmission shaft 49 protrudes into the rack chamber 5 and is connected to the distribution shaft 15 in the rack chamber 5.
  • the transmission shaft 49 is connected to the cam shaft 6 in an interlocking manner, through bevel gears 6B and 6C provided at a lower end portion of the transmission shaft 49.
  • the distribution shaft 15 is a substantially cylindrical member supported by the pump head 3.
  • the distribution shaft 15 is rotatably fit in a sleeve 17 fixed to the pump head 3.
  • the distribution shaft 15 is arranged above the transmission shaft 49 so that its axial direction is perpendicular to the cam shaft 6.
  • the distribution shaft 15 is connected to the transmission shaft 49 in an interlocking manner.
  • the amount adjusting mechanism 18 is a mechanism for adjusting a fuel amount supplied from the fuel injection pump 1 to each cylinder of the diesel engine 30.
  • the amount adjusting mechanism 18 includes a rack guide 19, a control rack 20, and a control sleeve 21.
  • the rack guide 19 is a member that supports the control rack 20.
  • the rack guide 19 is fixed in the front-rear direction on the upper surface of the rack chamber 5 and on the left side of the transmission shaft 49.
  • the control rack 20 is a rod-like member.
  • the control rack 20 is penetrated through the through hole of the rack guide 19.
  • the control rack 20 is capable of sliding inside the through hole of the rack guide 19.
  • One end portion of the control rack 20 is connected to the control sleeve 21, and a midway portion of the control rack 20 is connected to a link 28 of the later-described governor device 22 through a pin or the like.
  • the control sleeve 21 is a substantially cylindrical member.
  • the control sleeve 21 is fitted to the plunger 12, while being sandwiched between the plunger 12 and a spring receiver 16.
  • the control sleeve 21 is rotatable in a circumferential direction, along the inner circumferential surface of the spring receiver 16. At this time, the plunger 12 rotates integrally with the control sleeve 21 as the control sleeve 21 rotates.
  • the governor device 22 is a device for activating the amount adjusting mechanism 18.
  • the governor device 22 includes a support member 23, a plurality of centrifugal weights 24, 24,..., a slide member 25, a governor arm 26, a governor housing 27, a link 28, and the like.
  • the governor housing 27 containing these members is attached to the governor flange 2A using a bolt or the like.
  • the following describes an operation mode of the fuel injection pump 1 having the above-described structure.
  • the distribution shaft 15 is rotated with rotation of the cam shaft 6, through the bevel gears 6B, 6C and the transmission shaft 49.
  • the fuel supplied to the distribution shaft 15 is supplied to a delivery valve 29 by the rotation of the distribution shaft 15.
  • the fuel supplied to the delivery valve 29 is injected from a fuel injection nozzle of each cylinder through a not-shown injection pipe.
  • the centrifugal weights 24, 24,... that rotate integrally with the cam shaft 6 cause the slide member 25 to move according to the magnitude of the centrifugal force generated.
  • the movement of the slide member 25 rotates the governor arm 26 around the support shaft.
  • the rotation of the governor arm 26 moves the link 28.
  • the movement of the link 28 moves the control rack 20 in the through hole of the rack guide 19.
  • the movement of the control rack 20 causes the control sleeve 21 and the plunger 12 to rotate in a circumferential direction. This way, an amount of fuel to be supplied from the fuel injection pump 1 to each cylinder is adjusted.
  • the lubricating oil for the diesel engine 30 and the fuel injection pump 1 is stored in an oil pan 31.
  • the lubricating oil stored in the oil pan 31 is sucked up by a lubricating oil pump 32 and is supplied to the diesel engine 30 through a not-shown oil filter or the like.
  • the lubricating oil supplied to the diesel engine 30 is supplied to each part of the diesel engine 30 through a not-shown lubricating oil passage formed in the diesel engine 30.
  • the lubricating oil having lubricated the diesel engine 30 is returned to the oil pan 31.
  • Part of the lubricating oil supplied to the diesel engine 30 is supplied to the fuel injection pump 1 through a lubricating oil passage 33.
  • the lubricating oil supplied to the fuel injection pump 1 lubricates the amount adjusting mechanism 18 and the cam shaft 6 inside the pump housing 2, and then discharged to the gear case 34 of the diesel engine 30.
  • the lubricating oil discharged to the gear case 34 is returned to the oil pan 31.
  • part of the lubricating oil supplied to the fuel injection pump 1 is pressure-fed between the transmission shaft 49 and the transmission shaft hole 2C, through a lubricating oil passage 2D.
  • the lubricating oil passage 2D is an oil passage for pressure-feeding part of the lubricating oil supplied to inside the pump housing 2, between the transmission shaft 49 and the transmission shaft hole 2C.
  • the lubricating oil passage 2D penetrates from a wall surface of the tappet hole 2B to a wall surface on the side of the governor housing 27, in the pump housing 2.
  • a midway portion of the lubricating oil passage 2D communicates with the transmission shaft hole 2C.
  • part of the lubricating oil supplied from the diesel engine 30 to the fuel injection pump 1 is pressure-fed between the transmission shaft 49 and the transmission shaft hole 2C through the lubricating oil passage 2D, thereby reducing the friction force and wear occurring due to sliding movement of the transmission shaft 49 and the transmission shaft hole 2C.
  • the part of lubricating oil pressure-fed between the transmission shaft 49 and the transmission shaft hole 2C is fed to the downstream side of the lubricating oil passage 2D with the rotation of the transmission shaft 49 and is supplied to the governor housing 27.
  • FIG. 5(A) provides a front view (view from the side of the later-described second opening 42A) and a plan view of the structure of the transmission shaft 49
  • FIG. 5(B) provides a side view (view from the side of the later-described first opening 41A) and a plan view of the structure of the transmission shaft 49.
  • FIG. 6(A) provides a schematic side view of the first opening 41A
  • FIG. 6(B) provides a schematic plan view of the groove 41.
  • the transmission shaft 49 is a first embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 49 has an oil passage 40 formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • the oil passage 40 includes: the groove 41 formed in the outer circumferential surface of the transmission shaft 49 in an axial direction, the groove 41 including the first opening 41A; the communication path 43 opened on a wall portion 41B (see FIG. 6 ) of the groove 41, and formed in a radial direction of the transmission shaft 49; and a supply hole 42 communicated with the communication path 43, and formed from substantially an axial center portion of the transmission shaft 49 to the second opening 42A.
  • the first opening 41A of the oil passage 40 is communicated with the lubricating oil passage 2D, and the second opening 42A of the oil passage 40 is formed on an outer circumferential surface of an upper portion of the transmission shaft 49, nearby the control rack 20 (see FIG. 4 ).
  • Part of the lubricating oil pressure-fed to the lubricating oil passage 2D is taken into the oil passage 40 through the first opening 41A, and then passes through the oil passage 40, and injected into the control rack 20 through the second opening 42A.
  • the groove 41 is formed vertically long shape, in a predetermined portion of the outer circumferential surface of the transmission shaft 49.
  • the first opening 41A is formed by partially overlapping the groove 41 with the lubricating oil passage 2D, in the axial direction. More specifically, with the lower end portion of the groove 41A overlapping with the upper portion of the lubricating oil passage 2D in the vertical direction, the first opening 41A for taking in the lubricating oil from the lubricating oil passage 2D is formed.
  • the first opening 41A is a part of the groove 41, and by having the groove 41 overlapped with the lubricating oil passage 2D in the axial direction, the first opening 41A is formed.
  • the groove 41 communicates once with the upstream side of the lubricating oil passage 2D.
  • the first opening 41A constituting the groove 41A is communicated with the lubricating oil passage 2D. This way, part of the lubricating oil pressure-fed to the lubricating oil passage 2D is intermittently taken into the groove 41 through the first opening 41A.
  • the amount of lubricating oil taken into the oil passage 40 through the first opening 41A during a single rotation of the transmission shaft 49 is determined based on the time and area of communication between the lubricating oil passage 2D and the first opening 41A.
  • the communication path 43 is structured as a passage communicating the groove 41 and the supply hole 42.
  • An end portion (upper end portion) of the groove 41 and the start portion (an end portion on the side of the axial center of the transmission shaft 49) of the supply hole 42 are substantially at the same level, and the start portion of the supply hole 42 is positioned substantially at the axial center portion of the transmission shaft 49.
  • the communication path 43 is formed as a lateral hole extended toward the substantially axial center portion of the transmission shaft 49 and is arranged at substantially the same level as the end portion of the groove 41.
  • the communication path 43 is provided as a lateral hole from the later-described wall portion 41B of the groove 41 to the inside of the transmission shaft 49. Therefore, the communication passage 43 can be easily formed without a need for complicated processing.
  • the supply hole 42 is for spraying the lubricating oil taken in from the first opening 41A through the communication path 43 to the control rack 20 provided on the upper surface of the rack chamber 5.
  • the supply hole 42 is a hole extended toward substantially the axial center portion of the transmission shaft 49, from the second opening 42A provided in the outer circumferential surface of the upper portion of the transmission shaft 49, nearby the control rack 20.
  • the cross-sectional area of the supply hole 42 (the cross-sectional area relative to the direction of the flow of the lubricating oil) is smaller than the cross-sectional area of the communication path 43 (the cross-sectional area relative to the direction of the flow of the lubricating oil).
  • the pressure of the lubricating oil flowing in the supply hole 42 can be changed.
  • the supply hole 42 is formed by a drilled hole or the like.
  • the supply hole 42 is inclined at a desirable inclination angle toward the inside of the transmission shaft 49, from the second opening 42A formed in the outer circumferential surface of the upper portion of the transmission shaft 49, nearby the control rack 20, considering the relative positions of the transmission shaft 49 and the control rack 20 and the pressure of the lubricating oil flowing inside the supply hole 42, so that the lubricating oil can be sprayed to the control rack 20.
  • the second opening 42A is provided in the outer circumferential surface of the upper portion of the transmission shaft 49, and in a position that allows spraying of the lubricating oil to the control rack 20, at a time of injection.
  • the second opening 42A is provided in a position rotated and displaced from the position of the first opening 41A, by a desirable angle between approximately 90 to 135 degrees (approximately 90 degrees in the present embodiment) towards the downstream side of the rotation of the transmission shaft 49, considering the oil pressure of the lubricating oil flowing in the oil passage 40, the relative positions of the transmission shaft 49 and the control rack 20, and the like.
  • the lubricating oil passage 2D and the groove 41 are communicated with each other, and the oil is taken into the groove 41 through the first opening 41A.
  • the lubricating oil taken into the groove 41 is supplied to the supply hole 42 through the communication path 43.
  • the lubricating oil supplied to the supply hole 42 is injected at a predetermined position and is sprayed onto the control rack 20.
  • the moisture adhered to the control rack 20 is removed. That is, even if the temperature of the rack chamber 5 of the fuel injection pump 1 becomes equal to or lower than the dew point temperature of the blow-by gas, moisture does not adhere to the control rack 20 disposed inside the rack chamber 5. At the same time, even if the temperature of the rack chamber 5 becomes equal to or lower than the freezing point, start failure of the diesel engine 30 due to freezing of the control rack 20 can be prevented.
  • the lower end portion of the first opening 41A constituting the groove 41 is formed into a substantially U-shape.
  • the lower end portion of the groove 41 is curved in a substantially U-shape, and this lower end portion is arranged to overlap the lubricating oil passage 2D.
  • the time and area of communication between the lubricating oil passage 2D and the first opening 41A can be reduced. Further, by making the portion of the groove 41 formed into a substantially U-shape communicable with the upper portion of the lubricating oil passage 2D, the time and area of communication between the lubricating oil passage 2D and the first opening 41A can be further reduced.
  • the amount of lubricating oil to be taken in through the first opening 41A can be adjusted at a time of rotating the transmission shaft 49 at a high speed. Therefore, the amount of the lubricating oil sprayed through the supply hole 42 within a certain period can be made substantially constant, irrespective of the rotational speed of the transmission shaft 49.
  • the groove 41 has a wall portion 41B forming a bottom of the groove 41, and side walls 41C formed substantially perpendicularly to the wall portion 41B, which are provided on circumferential end portions of the wall portion 41B. That is, the groove 41 is formed in a substantially U-shape in plan view.
  • the communication path 43 is formed in a radial direction of the transmission shaft 49.
  • the lubricating oil taken into the groove 41 from the first opening 41A forms vortices at corner portions formed by the wall portion 41B and the side walls 41C of the groove 41. Since the lubricating oil tends to stay at the corner portions of the groove 41, leakage of the lubricating oil from the groove 41 between the transmission shaft hole 2C and the transmission shaft 49 can be reduced, and the oil pressure of the lubricating oil flowing in the groove 41 can be maintained.
  • An oil passage provided in the transmission shaft of each of the embodiments shown in FIG. 7 to FIG. 9 is structured so that a total length of its injection hole is shorter, as compared with the oil passage 40 of the embodiment shown in FIG. 5 .
  • the transmission shaft 59 is a second embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 59 has an oil passage 50 formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 7(A) provides a front view (view from the side of the later-described second opening 52A) and a plan view of the structure of the transmission shaft 59
  • FIG. 7(B) provides a side view (view from the side of the later-described first opening 51A) and a plan view of the structure of the transmission shaft 59.
  • the groove 51 is formed as an upright groove provided in an axial direction, in the outer circumferential surface of the transmission shaft 59.
  • a first opening 51A is formed by having the upper portion of the lubricating oil passage 2D overlapped with the lower end portion of the groove 51.
  • the second opening 52A is provided in a position rotated and displaced from the position of the first opening 51A, by a desirable angle between approximately 90 to 135 degrees (approximately 90 degrees in the present embodiment) towards the downstream side of the rotation of the transmission shaft 59.
  • the first opening 51A is a part of the groove 51, and by having the groove 51 overlapped with the lubricating oil passage 2D in the axial direction, the first opening 51A is formed.
  • the supply hole 52 is a hole penetrating the transmission shaft 59, substantially through the axial center portion, from the second opening 52A provided in the outer circumferential surface of the upper portion of the transmission shaft 59, nearby the control rack 20.
  • the supply hole 52 is formed as a hole 52B constituted by a drilled hole and the like from the second opening 52A to a middle portion between the second opening 52A and substantially the axial center portion of the transmission shaft 59, and is formed as a through hole 52C from the middle portion between the second opening 52A and substantially the axial center portion of the transmission shaft 59 to the outer circumferential surface of the transmission shaft 59 opposed to the second opening 52A, in plan view of the transmission shaft 59.
  • the diameter of the through hole 52C is larger than that of the hole 52B.
  • the hole 52B is formed from the second opening 52A, and the through hole 52C is formed from the outer circumferential surface of the transmission shaft 59, opposed to the second opening 52B in a plan view.
  • a communication path 53 communicating with the upper end portion of the groove 51 is formed.
  • the through hole 52C from the outer circumferential surface of the transmission shaft 59 opposed to the second opening 52A, the communication path 53 and the start portion of the hole 52B can be easily communicated with each other, and the oil passage 50 can be structured so that the total length of the hole 52B constituting the supply hole 52 is short. Further, since the opening of the outer circumferential surface of the transmission shaft 59 opposed to the second opening 52A is substantially sealed by the transmission shaft hole 2C, the oil pressure of the lubricating oil flowing in the oil passage 50 can be maintained.
  • the transmission shaft 69 is a third embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 69 has an oil passage 60 formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 8(A) provides a front view (view from the side of the later-described second opening 62A) and a plan view of the structure of the transmission shaft 69
  • FIG. 8(B) provides a side view (view from the side of the later-described first opening 61A) and a plan view of the structure of the transmission shaft 69
  • FIG. 8(C) shows a plan view of an upright groove 61C constituting the later-described oil passage 60.
  • the supply hole 62 is formed substantially towards the axial center portion from the second opening 62A provided in the outer circumferential surface of the upper portion of the transmission shaft 69, nearby the control rack 20.
  • the start portion of the supply hole 62 (an end portion on the side of the axial center of the transmission shaft 69) is positioned in a middle portion between the outer circumferential surface of the upper portion of the transmission shaft 69 (second opening 62A) and substantially the axial center portion of the transmission shaft 69.
  • the supply hole 62 is formed by a drilled hole or the like.
  • the groove 61 includes: the upright groove 61C provided in the axial direction in the outer circumferential surface of the transmission shaft 69; and a lateral groove 61B provided so as to partially overlap with the lower end portion of the upright groove 61C in the circumferential direction of the transmission shaft 69.
  • the first opening 61A is formed by providing the lateral groove 61B so as to communicate with the lubricating oil passage 2D.
  • the lateral groove 61B is arranged so that its rotation-downstream end overlaps with a rotation-upstream end of the upright groove 61C.
  • the upright groove 61C is arranged closer to the supply hole 62 as compared to the groove 41 of the embodiment shown in FIG. 5 .
  • a lateral hole serving as a communication path 63 is provided from the upper end portion of the upright groove 61C toward the start portion of the supply hole 62.
  • the first opening 61A is a part of the lateral groove 61B, and by having the lateral groove 61B overlapped with the lubricating oil passage 2D in the axial direction, the first opening 61A is formed.
  • the upright groove 61C has a wall portion 61D forming a bottom of the upright groove 61C, and a side wall 61E formed substantially perpendicularly to the wall portion 61D, which is provided only to the rotation-upstream end of the wall portion 61D. That is, the upright groove 61C is formed in a substantially L-shape in plan view.
  • the communication path 63 is a lateral hole formed in a radial direction of the transmission shaft 69 from the wall portion 61D of the upright groove 61C.
  • the lubricating oil taken into the upright groove 61C from the first opening 61A forms a vortex at a corner portion formed by the wall portion 61D and the side wall 61E of the groove 61C. Since the lubricating oil tends to stay at the corner portion of the upright groove61C, leakage of the lubricating oil from the upright groove 61C between the transmission shaft hole 2C and the transmission shaft 69 can be reduced, and the oil pressure of the lubricating oil flowing in the upright groove 61C can be maintained.
  • the communication path 63 is provided as a lateral hole from the wall portion 61D of the upright groove 61C to the inside of the transmission shaft 69. Therefore, the communication passage 63 can be easily formed without a need for complicated processing.
  • the second opening 62A is provided in a position rotated and displaced from the position of the first opening 61A, by a desirable angle between approximately 90 to 135 degrees (approximately 90 degrees in the present embodiment) towards the downstream side of the rotation of the transmission shaft 69. Therefore, the lubricating oil can be sprayed from the second opening 62A onto the control rack 20, at a desirable position.
  • the transmission shaft 79 is a fourth embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 79 has an oil passage 70 formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 9(A) provides a front view (view from the side of the later-described second opening 72A) and a plan view of the structure of the transmission shaft 79
  • FIG. 9(B) provides a side view (view from the side of the later-described first opening 71A) and a plan view of the structure of the transmission shaft 79
  • FIG. 9(C) provides a view of the structure of the transmission shaft 79 seen from a direction perpendicular to the axial direction of the later-described supply hole 72.
  • the supply hole 72 is formed substantially towards the axial center portion from the second opening 72A provided in the outer circumferential surface of the upper portion of the transmission shaft 79, nearby the control rack 20.
  • the start portion of the supply hole 72 (an end portion on the side of the axial center of the transmission shaft 79) is positioned in a middle portion between the outer circumferential surface of the upper portion of the transmission shaft 79 (second opening 72A) and substantially the axial center portion of the transmission shaft 79.
  • the supply hole 72 is arranged on the rotationally downstream side of the transmission shaft 79, as compared to the supply hole 42 of the embodiment shown in FIG. 5 .
  • the supply hole 72 is formed by a drilled hole or the like.
  • the groove 71 is formed as an upright groove provided in an axial direction, in the outer circumferential surface of the transmission shaft 79.
  • a first opening 71A is formed by having the lower end portion of the groove 71 overlapped with the upper portion of the lubricating oil passage 2D in the vertical direction.
  • the groove 71 is arranged closer to the supply hole 72 as compared to the groove 41 of the embodiment shown in FIG. 5 .
  • a lateral hole serving as a communication path 73 is provided from the upper end portion of the groove 71 toward the start portion of the supply hole 72.
  • the first opening 71A is a part of the groove 71, and by having the groove 71 overlapped with the lubricating oil passage 2D in the axial direction, the first opening 71A is formed.
  • the groove 71 is formed in a substantially L-shape in plan view as is the case of the upright groove 61C shown in FIG. 8(C) .
  • the groove 71 has a wall portion 71B forming a bottom of the groove 71, and a side wall 71C formed substantially perpendicularly to the wall portion 71B, which is provided only to the rotation-upstream end of the wall portion 71B. That is, the groove 71 is formed in a substantially L-shape in plan view.
  • the communication path 73 is a lateral hole formed in a radial direction of the transmission shaft 79 from the wall portion 71B of the groove 71.
  • the lubricating oil taken into the groove 71 from the first opening 71A forms a vortex at a corner portion formed by the wall portion 71B and the side wall 71C of the groove 71. Since the lubricating oil tends to stay at the corner portions of the groove 71, leakage of the lubricating oil from the groove 71 between the transmission shaft hole 2C and the transmission shaft 79 can be reduced, and the oil pressure of the lubricating oil flowing in the groove 71 can be maintained.
  • the communication path 73 is provided as a lateral hole from the wall portion 71B of the groove 71 to the inside of the transmission shaft 79. Therefore, the communication passage 73 can be easily formed without a need for complicated processing.
  • the groove 71 and the communication path 73 of the present embodiment each has a total length longer than the oil passage 40 of the embodiment shown in FIG. 5 , by providing the second opening 72A in a position rotated and displaced from the position of the first opening 71A, by a desirable angle between approximately 90 to 135 degrees (approximately 120 degrees in the present embodiment) towards the downstream side of the rotation of the transmission shaft 79, the lubricating oil can be sprayed from the second opening 72A onto the control rack 20, at a desirable position.
  • the first opening is structured by a lateral hole provided substantially toward the axial center portion of the transmission shaft, instead of a groove provided in the outer circumferential surface of the transmission shaft, and the communication path communicating the lateral hole with the supply hole is formed by an upright hole provided from a bottom portion of the transmission shaft, along the axis.
  • the transmission shaft 89A is a fifth embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 89A has an oil passage 80A formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 10(A) provides a front view (a view seen from the side of a later-described second opening 82A) and a side view (a view seen from a side of a later-described first opening 81A) of the structure of the transmission shaft 89A.
  • the supply hole 82 is formed substantially towards the axial center portion from the second opening 82A provided in the outer circumferential surface of the upper portion of the transmission shaft 89A, nearby the control rack 20.
  • the start portion of the supply hole 82 (end portion on the side of the axis of the transmission shaft 89A) is communicated with a later-described upright hole 83.
  • the transmission shaft 89A is provided with a lateral hole 81 from its outer circumferential surface toward its axis.
  • the first opening 81A is formed by arranging the lateral hole 81 so as to overlap with the lubricating oil passage 2D.
  • the transmission shaft 89A is provided with the upright hole 83 from its bottom surface, along the axis.
  • the upright hole 83 is provided so as to penetrate the bottom portion of the transmission shaft 89, and the bottom portion is closed by a sealing plug 84.
  • the end portion of the lateral hole 81 is communicated with a midway portion of the upright hole 83.
  • the upright hole 83 By closing the bottom portion of the upright hole 83 with the sealing plug 84, the oil pressure of the lubricating oil flowing in the upright hole 83 can be maintained. Further, the upright hole 83 is provided from the bottom surface of the transmission shaft 89A to the inside of the transmission shaft 89A. Therefore, the upright hole 83 can be easily formed without a need for complicated processing.
  • the transmission shaft 89B is a sixth embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 89B has an oil passage 80B formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 10(B) provides a front view (a view seen from the side of a later-described second opening 82A) and a side view (a view seen from a side of a later-described first opening 81A) of the structure of the transmission shaft 89B.
  • the oil passage 80B is formed by providing a pressure regulating valve 85 instead of the sealing plug 84 in the structure of the oil passage 80A of the embodiment shown in FIG. 10(A) .
  • the pressure regulating valve 85 at the bottom portion of the upright hole 83, if the oil pressure of the lubricating oil flowing inside the oil passage 80B is too high, part of the oil is discharged outside from the bottom portion of the transmission shaft 89B.
  • the pressure regulating valve 85 the amount of lubricating oil sprayed to the control rack 20 can be made constant.
  • the transmission shaft 89C is a seventh embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 89C has an oil passage 80C formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 10(C) provides a front view (a view seen from the side of a later-described second opening 82A) and a side view (a view seen from a side of a later-described first opening 81A) of the structure of the transmission shaft 89C.
  • the oil passage 80C is formed by providing a throttle valve 87 which performs an open/close operation by using a centrifugal force of a centrifugal weight 86, instead of the sealing plug 84 in the structure of the oil passage 80A of the embodiment shown in FIG. 10(A) .
  • the throttle valve 87 is structured so as to open and close when its valve body is slid by a change in a centrifugal force of the centrifugal weight 86 due to the rotational speed of the transmission shaft 89C. In the present embodiment, the valve is closed when the rotational speed of the transmission shaft 89C becomes high.
  • the amount of lubricating oil sprayed to the control rack 20 can be made constant, irrespective of the rotational speed of the transmission shaft 89C, i.e., the rotational speed of the diesel engine 30.
  • An oil passage provided to a transmission shaft of each embodiment shown in FIG. 11 is structured by a groove provided in the outer circumferential surface of the transmission shaft.
  • the transmission shaft 99A is an eighth embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 99A has an oil passage 90A formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 11(A) provides a front view (a view seen from the side of a later-described second opening 93A) and a side view (a view seen from a side of a later-described first opening 91A) of the structure of the transmission shaft 99A.
  • the first opening 91A is structured by having the lubricating oil passage 2D partially overlapped in the axial direction with an upright groove 91 provided in the outer circumferential surface of the transmission shaft 99A.
  • a circumferential groove 92 provided along the circumferential direction of the transmission shaft 99A is arranged so that its lower portion is overlapped in the axial direction.
  • an upright groove 93 provided toward the outer circumferential surface of the upper portion of the transmission shaft 99A is arranged so that its lower portion is overlapped in the axial direction.
  • the first opening 91A is a part of the upright groove 91, and by having the upright groove 91 overlapped with the lubricating oil passage 2D in the axial direction, the first opening 91A is formed.
  • the lubricating oil taken in from the first opening 91A is taken into the circumferential groove 92 through the upright groove 91.
  • the lubricating oil taken into the circumferential groove 92 flows into the upright groove 93 and is sprayed to the control rack 20, from the second opening 93A constituting the upper end portion of the upright groove 93 (between the transmission shaft 99A and the transmission shaft hole 2C).
  • the pressure of the lubricating oil flowing in the upright groove 93 is set to a pressure that enables spraying of the lubricating oil to the control rack 20.
  • the oil passage 90A can be easily formed.
  • the transmission shaft 99B is a ninth embodiment related to the transmission shaft of the present invention.
  • the transmission shaft 99B has an oil passage 90B formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 11(B) provides a front view (a view seen from the side of a later-described second opening 95A) and a side view (a view seen from a side of a later-described first opening 94A) of the structure of the transmission shaft 99B.
  • the first opening 94A is structured by arranging a circumferential groove 94 in the circumferential direction of the transmission shaft 99B so as to overlap with the lubricating oil passage 2D in the axial direction.
  • an upright groove 95 provided toward the outer circumferential surface of the upper portion of the transmission shaft 99B is arranged so as to partially overlap in the axial direction.
  • the first opening 91A is formed by overlapping the circumferential groove 94 with the lubricating oil passage 2D, in the axial direction.
  • the lubricating oil taken in from the first opening 94A is taken into the upright groove 95 through the circumferential groove 94.
  • the lubricating oil taken into the upright groove 95 is sprayed to the control rack 20, from the second opening 95A constituting the upper end portion of the upright groove 95 (between the transmission shaft 99B and the transmission shaft hole 2C).
  • the pressure of the lubricating oil flowing in the upright groove 95 is set to a pressure that enables spraying of the lubricating oil to the control rack 20.
  • the oil passage 90B can be easily formed. Further, since the lower portion of the circumferential groove 94 is always communicated with the lubricating oil passage 2D, the oil is always injected to the control rack 20.
  • the transmission shaft 109 is a tenth embodiment, not covered by the claimed invention, related to the transmission shaft of the present invention.
  • the transmission shaft 109 has an oil passage 100 formed therein, through which passage the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • FIG. 12(A) provides a front view (a view seen from the side of a later-described second opening 102A) of the structure of the transmission shaft 109
  • FIG. 12 (B) provides a side view (a view seen from a side of a later-described first opening 101A) of the structure of the transmission shaft 109.
  • the supply hole 102 is formed substantially towards the axial center portion from the second opening 102A provided in the outer circumferential surface of the upper portion of the transmission shaft 109A.
  • the first opening 101A is structured by providing a through hole 101 penetrating from the outer circumferential surface of the transmission shaft 109 capable of communicating with the lubricating oil passage 2D to a start portion of the supply hole 102 (an end portion on the side of the axis of the transmission shaft 109).
  • the start portion of the supply hole 102 is communicated with an end portion of the through hole 101.
  • the oil passage of each of the above-described embodiments are structured by providing a groove to the transmission shaft 109.
  • the oil passage of each of the embodiments shown in FIG. 13 is structured by providing a groove or a hole to the transmission shaft and the pump housing 2, or only to the pump housing 2.
  • FIG. 13 (A) A structure of an eleventh embodiment of the oil passage formed to the transmission shaft 119A and the pump housing 2 is described with reference to FIG. 13 (A) .
  • the transmission shaft 119A and the pump housing 2 have an oil passage 110A through which the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • the structures of the transmission shaft 119A and the pump housing 2 are illustrated as a partial cross-sectional view of the pump housing 2, viewed from the front-rear direction.
  • the first opening 111A is structured by arranging a circumferential groove 111 in the circumferential direction, in the outer circumferential surface of the transmission shaft 119A so as to overlap with the lubricating oil passage 2D in the axial direction.
  • An upright groove 112 is provided in the inner circumferential surface of the transmission shaft hole 2C so as to partially overlap in the axial direction, with the upper portion of the circumferential groove 111.
  • the upright groove 112 is formed from the upper portion of the circumferential groove 111 toward the bottom surface of the rack chamber 5.
  • the first opening 111A is formed by overlapping the circumferential groove 111 with the lubricating oil passage 2D, in the axial direction.
  • the lubricating oil taken in from the first opening 111A is taken into the upright groove 112 through the circumferential groove 111.
  • the lubricating oil taken into the upright groove 112 is sprayed to the control rack 20, from the second opening 112A constituting the upper end portion of the upright groove 112 (between the transmission shaft 119A and the transmission shaft hole 2C).
  • FIG. 13(B) A structure of a twelfth embodiment, not covered by the claimed invention, of the oil passage formed to the pump housing 2 is described with reference to FIG. 13(B) .
  • the pump housing 2 has an oil passage 110B through which the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • the structures of the transmission shaft 119B and the pump housing 2 are illustrated as a partial cross-sectional view of the pump housing 2, viewed from the front-rear direction.
  • the first opening 113A is structured by arranging a circumferential groove 113 in the circumferential direction, in the inner circumferential surface of the transmission shaft hole 2C so as to partially overlap with the lubricating oil passage 2D in the vertical direction.
  • An upright groove 113 is provided in the inner circumferential surface of the transmission shaft hole 2C so as to partially overlap in the vertical direction, with the upper portion of the circumferential groove 114.
  • the upright groove 114 is formed from the upper portion of the circumferential groove 113 toward the bottom surface of the rack chamber 5.
  • the first opening 113A is formed by overlapping the circumferential groove 113 with the lubricating oil passage 2D, in the axial direction.
  • the lubricating oil taken in from the first opening 113A is taken into the upright groove 114 through the circumferential groove 113.
  • the oil taken into the upright groove 114 is sprayed to the control rack 20, from the second opening 114A constituting the upper end portion of the upright groove 114 (between the transmission shaft 119B and the transmission shaft hole 2C).
  • FIG. 13(C) A structure of a thirteenth embodiment, not covered by the claimed invention, of the oil passage formed to the pump housing 2 is described with reference to FIG. 13(C) .
  • the pump housing 2 has an oil passage 110C through which the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • the structures of the transmission shaft 119C and the pump housing 2 are illustrated as a partial cross-sectional view of the pump housing 2, viewed from the front-rear direction.
  • the first opening 115A is structured by arranging a circumferential groove 115 in the circumferential direction, in the inner circumferential surface of the transmission shaft hole 2C so as to partially overlap with the lubricating oil passage 2D in the axial direction.
  • a supply hole 116 is provided inside the pump housing 2, from the circumferential groove 115 toward the bottom surface of the rack chamber 5.
  • the first opening 115A is formed by overlapping the circumferential groove 115 with the lubricating oil passage 2D, in the axial direction.
  • the lubricating oil taken in from the first opening 115A is taken into the supply hole 116 through the circumferential groove 115.
  • the oil taken into the supply hole 116 is sprayed to the control rack 20, from the second opening 116A constituting the upper end portion of the supply hole 116.
  • a through hole may be provided from the side of the governor housing 27 directly to the supply hole 116 provided inside the pump housing 2, without the lubricating oil passage 2D intervened.
  • FIG. 14 A structure of a fourteenth embodiment of the oil passage formed to the pump housing 2 is described with reference to FIG. 14 .
  • the pump housing 2 has an oil passage 120 through which the lubricating oil pressure-fed to the lubricating oil passage 2D partially passes.
  • the structures of the transmission shaft 129 and the pump housing 2 are illustrated as a partial cross-sectional view of the pump housing 2, viewed from the front-rear direction.
  • the first opening 121A is structured by arranging a circumferential groove 121 in the circumferential direction, in the outer circumferential surface of the transmission shaft 129 so as to partially overlap with the lubricating oil passage 2D in the axial direction.
  • the circumferential groove 121B is provided with an expanded portion 121B in which the groove width is widened in the axial direction.
  • a supply hole 122 capable of communicating with the upright portion 121B is provided in the pump housing 2.
  • the supply hole 122 penetrates a surface on the side of the transmission shaft hole 2C of the pump housing 2 and the bottom surface constituting the rack chamber 5, at a desirable inclination angle in the pump housing 2.
  • the first opening 121A is formed by overlapping the circumferential groove 121 with the lubricating oil passage 2D, in the axial direction.
  • the present invention is applicable to a fuel injection pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physiology (AREA)
  • Signal Processing (AREA)
  • Radiology & Medical Imaging (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Cardiology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Security & Cryptography (AREA)
  • Psychiatry (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Primary Health Care (AREA)
  • Epidemiology (AREA)
  • Hematology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
EP16868414.0A 2015-11-26 2016-11-11 Fuel injection pump Active EP3382194B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015231174A JP6411313B2 (ja) 2015-11-26 2015-11-26 燃料噴射ポンプ
PCT/JP2016/083546 WO2017090466A1 (ja) 2015-11-26 2016-11-11 燃料噴射ポンプ

Publications (3)

Publication Number Publication Date
EP3382194A1 EP3382194A1 (en) 2018-10-03
EP3382194A4 EP3382194A4 (en) 2018-12-05
EP3382194B1 true EP3382194B1 (en) 2021-10-27

Family

ID=58763129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16868414.0A Active EP3382194B1 (en) 2015-11-26 2016-11-11 Fuel injection pump

Country Status (6)

Country Link
US (2) US10718305B2 (ko)
EP (1) EP3382194B1 (ko)
JP (1) JP6411313B2 (ko)
KR (2) KR102443622B1 (ko)
CN (2) CN111894779A (ko)
WO (1) WO2017090466A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6411313B2 (ja) * 2015-11-26 2018-10-24 ヤンマー株式会社 燃料噴射ポンプ
KR20210068460A (ko) 2018-09-28 2021-06-09 닛테츠 케미컬 앤드 머티리얼 가부시키가이샤 다관능 비닐 방향족 공중합체 및 그 제조 방법, 그것으로부터 얻어지는 공중합체 고무, 고무 조성물, 고무 가교물, 및 타이어 부재
EP4005819A4 (en) 2019-06-25 2023-09-27 Nippon Steel Chemical & Material Co., Ltd. MODIFIED VINYLAROMATIC COPOLYMER, METHOD FOR PRODUCING SAME, MODIFIED CONJUGATED DIENE COPOLYMER OBTAINED THEREFROM AND ITS COMPOSITION, CROSS-LINKED RUBBER OBJECT AND TIRE ELEMENT
WO2023100993A1 (ja) 2021-12-03 2023-06-08 日鉄ケミカル＆マテリアル株式会社 変性ビニル芳香族系共重合体及びその製造方法、それから得られる変性共役ジエン系共重合体、樹脂組成物、樹脂架橋物及び構造部材

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2363576A (en) * 1943-09-25 1944-11-28 Devorak Raymond John Fuel control valve for diesel engines
US2503458A (en) * 1946-02-11 1950-04-11 Diesel Power Inc Fuel injection pump
US2828727A (en) * 1953-03-05 1958-04-01 Bosch Arma Corp Fuel injection pump
US3744465A (en) * 1972-01-24 1973-07-10 Ambac Ind Hydraulic shuttle vavle for fuel injection pumps
JPS59131970U (ja) * 1983-02-24 1984-09-04 宇部興産株式会社 内燃機関の燃料噴射ポンプ
US4531494A (en) * 1984-03-27 1985-07-30 Caterpillar Tractor Co. Distributor fuel injection pump having a nutator pump subassembly
JPH0212299Y2 (ko) * 1984-12-28 1990-04-06
US5152271A (en) * 1985-07-15 1992-10-06 Osamu Matsumura Fuel injection apparatus
JPS63125121U (ko) * 1987-02-06 1988-08-16
US5000668A (en) * 1988-04-27 1991-03-19 Diesel Kiki Co., Ltd. Distribution-type fuel injection pump
DE3819996A1 (de) * 1988-06-11 1989-12-14 Bosch Gmbh Robert Hydraulische steuereinrichtung insbesondere fuer kraftstoffeinspritzanlagen von brennkraftmaschinen
JPH0361663A (ja) * 1989-07-29 1991-03-18 Nippondenso Co Ltd フェイスカム式分配型燃料噴射装置
DE3928612A1 (de) * 1989-08-30 1991-03-07 Bosch Gmbh Robert Kraftstoffverteilereinspritzpumpe fuer brennkraftmaschinen
DE3943299A1 (de) * 1989-12-29 1991-07-04 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
JPH04123367U (ja) * 1991-04-22 1992-11-09 日野自動車工業株式会社 燃料噴射ポンプ
JPH06330833A (ja) * 1993-05-24 1994-11-29 Yanmar Diesel Engine Co Ltd 燃料噴射ポンプ
JPH0861180A (ja) * 1994-06-16 1996-03-05 Zexel Corp 分配型燃料噴射ポンプ
JP3783147B2 (ja) * 1997-02-07 2006-06-07 ボッシュ株式会社 分配型燃料噴射ポンプ及び動力伝達装置
JPH11166465A (ja) * 1997-12-04 1999-06-22 Yanmar Diesel Engine Co Ltd 燃料噴射ポンプの潤滑構造
GB9816926D0 (en) * 1998-08-04 1998-09-30 Lucas Ind Plc Distributor arrangement
JP4037986B2 (ja) * 1999-03-11 2008-01-23 ヤンマー株式会社 燃料噴射ポンプ構造
JP2001115921A (ja) * 1999-10-14 2001-04-27 Yanmar Diesel Engine Co Ltd 分配型燃料噴射ポンプ
DE10012306C2 (de) * 2000-03-14 2003-12-24 Bosch Gmbh Robert Verteilereinspritzpumpe
WO2001090569A1 (fr) * 2000-05-26 2001-11-29 Yanmar Co., Ltd. Pompe d'injection de carburant
JP4422405B2 (ja) * 2000-11-09 2010-02-24 ヤンマー株式会社 蓄圧式分配型燃料噴射ポンプ
JP2002265917A (ja) * 2001-03-14 2002-09-18 Sekisui Chem Co Ltd 湿気硬化型接着剤組成物
EP1541857A1 (en) * 2002-07-09 2005-06-15 Bosch Automotive Systems Corporation Diesel engine dme fuel supply device
JP3814245B2 (ja) * 2002-11-21 2006-08-23 ヤンマー株式会社 燃料噴射ポンプ
JP3993841B2 (ja) * 2003-06-12 2007-10-17 ヤンマー株式会社 低温始動進角機構を備える燃料噴射ポンプ
JP4473839B2 (ja) * 2006-05-09 2010-06-02 ヤンマー株式会社 燃料噴射ポンプ
JP2008163826A (ja) * 2006-12-28 2008-07-17 Denso Corp 燃料噴射ポンプ
JP2009149185A (ja) * 2007-12-20 2009-07-09 Yamaha Motor Co Ltd 船外機
JP5320079B2 (ja) * 2009-01-06 2013-10-23 ヤンマー株式会社 燃料噴射ポンプ
JP5325188B2 (ja) * 2010-09-24 2013-10-23 アイシン・エィ・ダブリュ株式会社 液圧発生装置及び駆動装置
US9322411B2 (en) * 2010-12-07 2016-04-26 Magna Powertrain Hueckeswagen Gmbh Coupling, rotor, and assembly for a pump
DE102011002811A1 (de) * 2011-01-18 2012-07-19 Robert Bosch Gmbh Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine
DE102011082729A1 (de) * 2011-09-15 2013-03-21 Robert Bosch Gmbh Kraftstoffhochdruckpumpe für ein Kraftstoffeinspritzsystem sowie Pumpenanordnung
JP5785482B2 (ja) * 2011-11-25 2015-09-30 本田技研工業株式会社 内燃機関のカムシャフト支持構造
JP5459329B2 (ja) * 2012-01-31 2014-04-02 株式会社デンソー サプライポンプ
JP5886104B2 (ja) * 2012-03-28 2016-03-16 ヤンマー株式会社 燃料噴射ポンプ
JP5824394B2 (ja) * 2012-03-28 2015-11-25 ヤンマー株式会社 燃料噴射ポンプ
EP2662564A1 (en) * 2012-05-09 2013-11-13 Delphi Technologies Holding S.à.r.l. Driveshaft lubrication
JP6091787B2 (ja) * 2012-07-20 2017-03-08 ヤンマー株式会社 燃料噴射ポンプ
DE102012219537A1 (de) * 2012-10-25 2014-04-30 Robert Bosch Gmbh Kraftstoffhochdruckpumpe mit einer Lagerversorgung über Schmierbohrungen in einer Antriebswelle
JP6411313B2 (ja) * 2015-11-26 2018-10-24 ヤンマー株式会社 燃料噴射ポンプ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP2017096212A (ja) 2017-06-01
US10718305B2 (en) 2020-07-21
KR102443622B1 (ko) 2022-09-14
KR20200029620A (ko) 2020-03-18
KR20180084128A (ko) 2018-07-24
JP6411313B2 (ja) 2018-10-24
US20180335005A1 (en) 2018-11-22
EP3382194A4 (en) 2018-12-05
WO2017090466A1 (ja) 2017-06-01
EP3382194A1 (en) 2018-10-03
CN108291515A (zh) 2018-07-17
US20200375477A1 (en) 2020-12-03
CN111894779A (zh) 2020-11-06
KR102096198B1 (ko) 2020-04-01
CN108291515B (zh) 2020-07-31

Similar Documents

Publication Publication Date Title
US20200375477A1 (en) Fuel Injection Pump
CN110139987B (zh) 油泵以及油泵一体式平衡器装置
JP4982503B2 (ja) カムシャフト調整器
US20060280620A1 (en) High-pressure pump for a fuel-injection device of an internal combustion engine
JP2017061859A (ja) 複リンク式ピストン−クランク機構の潤滑構造
JP6177537B2 (ja) シリンダ潤滑装置を含む大型エンジン又は大型エンジンのシリンダを潤滑する方法
JP6948891B2 (ja) 燃料ポンプ装置
US20180328478A1 (en) Scissor gear oil supplying structure
WO2018016429A1 (ja) 燃料噴射ポンプ
CN103946491A (zh) 阀开闭时期控制装置
RU2739431C1 (ru) Система смазки с проходом и насадкой для масла
US6807936B1 (en) Oil pressure control valve by sliding camshaft for an internal combustion engine
JP6712519B2 (ja) ローラリフタ
JP2009185607A (ja) 燃料供給ポンプ
KR100420588B1 (ko) 대형 선박용 윤활유 분사노즐 및 윤활유 공급 시스템
EP3625449B1 (en) Pump unit for feeding fuel to an internal-combustion engine
JP2002147212A (ja) バランサ付きディーゼルエンジン
JP6965702B2 (ja) オイル供給機構
JP6930395B2 (ja) オイル供給機構
JP2021113536A (ja) 内燃機関の潤滑装置
JPH06213278A (ja) バランサシャフト付きエンジンの潤滑装置
JPS603294Y2 (ja) 動弁機構の潤滑装置
JPS63215871A (ja) 燃料噴射ポンプ
JPS6251711A (ja) 内燃機関の給油装置
GB2554036A (en) High pressure fuel pumps

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180626

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20181030

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 63/00 20060101ALI20181024BHEP

Ipc: F02M 59/28 20060101AFI20181024BHEP

Ipc: F02M 51/04 20060101ALI20181024BHEP

Ipc: F02D 1/02 20060101ALI20181024BHEP

Ipc: F02M 41/14 20060101ALI20181024BHEP

Ipc: F01M 9/10 20060101ALI20181024BHEP

Ipc: F02M 53/00 20060101ALN20181024BHEP

Ipc: F02M 59/44 20060101ALI20181024BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200109

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: YANMAR POWER TECHNOLOGY CO., LTD.

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 53/00 20060101ALN20210414BHEP

Ipc: F02D 1/02 20060101ALI20210414BHEP

Ipc: F02M 41/14 20060101ALI20210414BHEP

Ipc: F02M 63/00 20060101ALI20210414BHEP

Ipc: F02M 59/44 20060101ALI20210414BHEP

Ipc: F02M 51/04 20060101ALI20210414BHEP

Ipc: F01M 9/10 20060101ALI20210414BHEP

Ipc: F02M 59/28 20060101AFI20210414BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210527

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1442014

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016065572

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20211027

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1442014

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220127

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220227

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220228

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220127

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220128

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016065572

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211111

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20211130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211130

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220127

26N No opposition filed

Effective date: 20220728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211111

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220127

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231121

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027